Astatistical program is recommended. the following observations are on stopping distance (ft) of a particular truck at 20 mph under specified experimental conditions. 32.1 30.7 31.2 30.4 31.0 31.9 the report states that under these conditions, the maximum allowable stopping distance is 30. a normal probability plot validates the assumption that stopping distance is normally distributed. (a) does the data suggest that true average stopping distance exceeds this maximum value? test the appropriate hypotheses using α = 0.01. state the appropriate hypothes

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas

I've been working on this for a few days and i just don't understand, it's due in a few hours. you.the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α.part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part bsuppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i.e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case.part cnow try a numerical problem. what is the direction of the vector w = < -1, 6 > ?